A survey of nine years of research literature on training published by Fletcher and Tobias on "Training and retraining", commissioned by the American PsychologicalAssociation, and published in 2000, concluded that: Students learn more, using teaching methods based on e-learning than in conventional ways of teaching, as resulting from measurements and surveys after completion of each educational method.

Special studies by Fletcher (1999), Kulik (1994), Willett, Yamashita & Anderson (1983), confirm that all students learn more, using the computer than with traditional methods in the classroom.